Abalone has high nutritional value. How should it be cultured?

Abalone is a primitive marine shellfish, belonging to monocotyledonous mollusks. Its shell is only half thick, flat and wide. Abalone is a precious food, delicious, with high nutritional content and dietotherapy effect. Abalone culture is also an important agricultural aquaculture project, which has important significance and economic value. Let's learn about abalone culture technology.

1. Breeding mode

There are mainly four kinds of marine raft culture, submarine caisson culture, seaside enclosure culture and indoor plastic box culture. You can choose according to the local environment. This paper mainly talks about the main points of indoor plastic box culture mode. The depth of the culture pond is about 1m, and the plastic box is 39cm long, 30cm wide and 12cm high. Leave a gap in the middle of the incubator.

2. Abalone culture mode

Abalone is hermaphrodite, but does not mate. In the breeding season, after the male and female reproductive systems are perfect, sperm and eggs are discharged from the seawater outside the body and can develop when they meet in the sea. This way of reproduction is very similar to that of bivalves.

It usually breeds in summer and autumn, and after fertilization, the eggs sink to the bottom of the sea and become young abalone. Abalone grows slowly, and its shell can reach 2-3 cm after one year and 4-5 cm after two years. Abalone with a shell length of 10 cm or more, about six or seven years.

3. Feed feeding

? Generally, young abalone below 2 cm can be fed with artificial compound bait, supplemented by artificially cultured benthic diatoms. Young abalone over 2 cm mainly take kelp, Undaria pinnatifida and other seaweed as bait, and cooperate with artificial bait. From September to165438+1October, when seaweed is poor, artificial compound bait can be fed again, or dried kelp can be fed after soaking in seawater. Artificial compound bait is fed by skill, and the daily feeding amount accounts for 2% ~ 5% of abalone weight; If kelp and other algae plants are fed, the feeding amount should be appropriately increased to ensure that abalone has sufficient feeding opportunities.

Feeding is usually once every 2~3 days, and residual bait and deposited sludge are thoroughly removed before feeding. Moderately less investment during hot weather, once every 3 days; When the temperature is lower than 12 degrees in winter, it will be released once every four days.